digitalWrite(LED1, LOW);
delay(t1);
digitalWrite(LED2, LOW);
delay(t1);
digitalWrite(LED3, LOW);
delay(t1);
digitalWrite(LED4, LOW);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED1, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED2, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED3, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED4, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED5, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
delay(t1);
digitalWrite(LED15, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED14, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED13, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED24, LOW);
digitalWrite(LED20, HIGH);
digitalWrite(LED16, HIGH);
delay(t1);
digitalWrite(LED23, LOW);
digitalWrite(LED15, HIGH);
delay(t1);
digitalWrite(LED22, LOW);
digitalWrite(LED14, HIGH);
delay(t1);
digitalWrite(LED21, LOW);
digitalWrite(LED13, HIGH);
delay(t1);
digitalWrite(LED20, LOW);
digitalWrite(LED24, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED23, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED22, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED21, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED20, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED9, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED10, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED11, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
digitalWrite(LED12, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED1, LOW);
digitalWrite(LED5, HIGH);
digitalWrite(LED10, HIGH);
delay(t1);
digitalWrite(LED3, LOW);
digitalWrite(LED11, HIGH);
delay(t1);
digitalWrite(LED4, LOW);
digitalWrite(LED12, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED1, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED2, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED3, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED4, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED5, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
digitalWrite(LED16, LOW);
digitalWrite(LED20, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED15, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED14, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED13, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED24, LOW);
digitalWrite(LED20, HIGH);
digitalWrite(LED16, HIGH);
delay(t1);
digitalWrite(LED23, LOW);
digitalWrite(LED15, HIGH);
delay(t1);
digitalWrite(LED22, LOW);
digitalWrite(LED14, HIGH);
delay(t1);
digitalWrite(LED21, LOW);
digitalWrite(LED13, HIGH);
delay(t1);
digitalWrite(LED20, LOW);
digitalWrite(LED24, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED22, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED21, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED20, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED9, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED10, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED11, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
digitalWrite(LED12, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED1, LOW);
digitalWrite(LED5, HIGH);
digitalWrite(LED9, HIGH);
delay(t1);
digitalWrite(LED2, LOW);
digitalWrite(LED10, HIGH);
delay(t1);
digitalWrite(LED3, LOW);
digitalWrite(LED11, HIGH);
delay(t1);
digitalWrite(LED4, LOW);
digitalWrite(LED12, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED1, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED2, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED3, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED4, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED5, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED20, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED15, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED14, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED13, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED24, LOW);
digitalWrite(LED20, HIGH);
digitalWrite(LED16, HIGH);
delay(t1);
digitalWrite(LED23, LOW);
digitalWrite(LED15, HIGH);
delay(t1);
digitalWrite(LED22, LOW);
digitalWrite(LED14, HIGH);
delay(t1);
digitalWrite(LED21, LOW);
digitalWrite(LED13, HIGH);
delay(t1);
digitalWrite(LED20, LOW);
digitalWrite(LED24, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED23, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED22, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED21, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED20, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED9, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED10, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED11, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
digitalWrite(LED12, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
delay(t1);
digitalWrite(LED2, LOW);
digitalWrite(LED10, HIGH);
delay(t1);
digitalWrite(LED3, LOW);
digitalWrite(LED11, HIGH);
delay(t1);
digitalWrite(LED4, LOW);
digitalWrite(LED12, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED1, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED2, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED3, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED4, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED5, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED17, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
digitalWrite(LED16, LOW);
digitalWrite(LED20, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED15, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED14, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED13, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED24, LOW);
digitalWrite(LED20, HIGH);
digitalWrite(LED16, HIGH);
delay(t1);
digitalWrite(LED23, LOW);
digitalWrite(LED15, HIGH);
delay(t1);
digitalWrite(LED22, LOW);
digitalWrite(LED14, HIGH);
delay(t1);
digitalWrite(LED21, LOW);
digitalWrite(LED13, HIGH);
delay(t1);
digitalWrite(LED20, LOW);
digitalWrite(LED24, HIGH);
delay(t1);
digitalWrite(LED18, LOW);
digitalWrite(LED22, HIGH);
delay(t1);
digitalWrite(LED19, LOW);
digitalWrite(LED21, HIGH);
delay(t1);
digitalWrite(LED8, LOW);
digitalWrite(LED20, HIGH);
delay(t1);
digitalWrite(LED7, LOW);
digitalWrite(LED17, HIGH);
delay(t1);
digitalWrite(LED6, LOW);
digitalWrite(LED18, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
digitalWrite(LED9, LOW);
digitalWrite(LED19, HIGH);
delay(t1);
digitalWrite(LED10, LOW);
digitalWrite(LED8, HIGH);
delay(t1);
digitalWrite(LED11, LOW);
digitalWrite(LED7, HIGH);
delay(t1);
digitalWrite(LED12, LOW);
digitalWrite(LED6, HIGH);
delay(t1);
digitalWrite(LED1, LOW);
digitalWrite(LED5, HIGH);
digitalWrite(LED9, HIGH);
delay(t1);
digitalWrite(LED2, LOW);
digitalWrite(LED10, HIGH);
delay(t1);
digitalWrite(LED3, LOW);
digitalWrite(LED11, HIGH);
delay(t1);
digitalWrite(LED4, LOW);
digitalWrite(LED12, HIGH);
delay(t1);
digitalWrite(LED5, LOW);
delay(t1);
digitalWrite(LED6, LOW);
delay(t1);
digitalWrite(LED7, LOW);
delay(t1);
digitalWrite(LED8, LOW);
delay(t1);
digitalWrite(LED9, LOW);
delay(t1);
digitalWrite(LED10, LOW);
delay(t1);
digitalWrite(LED11, LOW);
delay(t1);
digitalWrite(LED12, LOW);
delay(t1);
digitalWrite(LED13, LOW);
digitalWrite(LED15, LOW);
delay(t1);
digitalWrite(LED16, LOW);
delay(t1);
digitalWrite(LED17, LOW);
delay(t1);
digitalWrite(LED18, LOW);
delay(t1);
digitalWrite(LED19, LOW);
delay(t1);
digitalWrite(LED20, LOW);
delay(t1);
digitalWrite(LED21, LOW);
delay(t1);
digitalWrite(LED22, LOW);
delay(t1);
digitalWrite(LED23, LOW);
delay(t1);
digitalWrite(LED24, LOW);
delay(t1);
digitalWrite(LED1, HIGH);
digitalWrite(LED2, HIGH);
digitalWrite(LED3, HIGH);
digitalWrite(LED4, HIGH);
digitalWrite(LED5, HIGH);
digitalWrite(LED6, HIGH);
digitalWrite(LED7, HIGH);
digitalWrite(LED8, HIGH);
digitalWrite(LED9, HIGH);
digitalWrite(LED10, HIGH);
digitalWrite(LED11, HIGH);
digitalWrite(LED12, HIGH);
digitalWrite(LED13, HIGH);
digitalWrite(LED14, HIGH);
digitalWrite(LED15, HIGH);
digitalWrite(LED16, HIGH);
digitalWrite(LED17, HIGH);
digitalWrite(LED18, HIGH);
digitalWrite(LED19, HIGH);
digitalWrite(LED20, HIGH);
digitalWrite(LED21, HIGH);
digitalWrite(LED22, HIGH);
digitalWrite(LED23, HIGH);
digitalWrite(LED24, HIGH);
delay(t1);